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QCGB

 

A bit ago there was talk on QCGB's , this guy made one for a larger lathe & has several youtubes on his build .


Re: howto or help

 

You have a lathe, no need for the grinder

On Thu, Feb 27, 2025 at 10:28?AM Jacques Savard via <jacquessavard=videotron.ca@groups.io> wrote:

pl
?
what? do you? thing? about? use? a? grinder? to make a poley? whit? the nut
?
is it a good? or bad? ?way? to fix? my problem?
?
?
some body? do that? before ?
?
jack 47 71
?
?


Re: howto or help

 

pl
?
what? do you? thing? about? use? a? grinder? to make a poley? whit? the nut
?
is it a good? or bad? ?way? to fix? my problem?
?
?
some body? do that? before ?
?
jack 47 71
?
?


Re: howto or help

 

开云体育

plisse, voraite in french aiv' ry bodi antersdand.

tink u


On 22.02.25 21:38, Jacques Savard via groups.io wrote:

?
ok
I think? I have x2? solution
1- make polly? whit? the? nut? very lilltle? poly? about 1 inch?
2.-? the? shaft are abour 5/8? inch? and? I? have? ?poly of 1/2 inch? inside? but? not? able? to make it? fit? on this kind of? shaft
?
phot? show? all? the problem?
?
some? solution? maybe
?
?

Attachments:



Re: howto or help

 

?
ok
I think? I have x2? solution
1- make polly? whit? the? nut? very lilltle? poly? about 1 inch?
2.-? the? shaft are abour 5/8? inch? and? I? have? ?poly of 1/2 inch? inside? but? not? able? to make it? fit? on this kind of? shaft
?
phot? show? all? the problem?
?
some? solution? maybe
?
?


Re: Here list of charts & Tables

 

Add a few more pages on making?
  1. PISTON RINGS
  2. MILLING IN A LATHE?
  3. MAKING GEARS IN A LATHE?
  4. BORE A ENGINE CASTING ON A LATHE
  5. DRILLING A LONG BAR IN A LATHE?
  6. and more
?
Dave
?
Part 1 of 2
Part 2 of 2
?
?
see link for more
?
/g/minilathe/files/6.%20Rarely%20used%20Charts%20and%20tables/1%29%20How%20to%20books%20and%20files/1%20piston%20ring%20milling%20gear%20cutting%20and%20more.PDF


Re: Large work holding

 

I did not see last September.?
I think most mini lathes have a 3" or 4" 3 jaw.?
I do not know swing of your lathe.
?
The first did after the tool post was get a 5" 4 jaw chuck for the larger parts also a 4 jaw will grip a little larger too.?
?
My 5" 4j will grip around 6" .
?
If find used 6" 4j it will do around 7"
?
Dave?
?
On Thu, Sep 19, 2024 at 02:09 AM, David James wrote:

It is a 2 cylinder double sided beam engine. A bit too big for my small machines, I will try to attach the plan


Re: A new (and slightly off) topic

 

Agree with mike in snowy Kansas.
?
All kinds of materials are machined.
?
Wood is nothing of a mess compared to phenolic.
?
Consider using a vacuum when working with messy material.
?
John (in very cold Michigan -it's 4 degrees at this writing ; )
?
?


Re: A new (and slightly off) topic

 

Just my 2? worth this morning.....
?
I really don't think this thread is off-topic.? We are talking about machining different materials on a mini-lathe.? Does it really matter what the material is?? Would it be off-topic if I said I was cutting threads on a Delrin? ring for a telescope lens?? Is it off-topic if I am making a Teflon? piston for a replica steam engine??
?
In my main hobby of restoring antique carousel organs, I once made a production run of 600 "pipe toes" out of birch.? These are small to medium turnings that have a through hole, a tenon, and need a very repeatable taper of 3°.? My 8x14 mini-lathe was the only appropriate machine in my shop.
?
For those of you who like to google more information, here's an article from my good Friend David Wasson (who is a machinist by the way):
https://coaa.us/index_archive/Issues_31_to_40/Traditional%20Band%20Organ%20Pipe%20Construction%20-%20David%20Wasson_%20_35%20&%2036.pdf
?
From snowy Wichita Kansas,
Mike
?


Re: A new (and slightly off) topic

 

Having precisely milled wood blocks on my mill I would say "Go for it!"?


On Sat, Feb 15, 2025 at 1:08?AM davesmith1800 via <davesmith1=sbcglobal.net@groups.io> wrote:
This very clear this site is only? MINI LATHE.?
So remember no off Topics here
?
I can help just send message I think i have seen your name on
om/? or /g/minilathe
?and can help you out the first is on engines and steam engines.
The message system works best on
?
Here I only talke about mini lathes?
I would post email but that is not good idea today.?
?
Dave?
?


Re: Polygon Cutter

 

开云体育

Or use a real email client 8-) [gdr]

I don’t have that problem…even If I close the mail without sending it asks me if I want to save the draft…has saved my butt multiple times.

Of course my day job in IT kinda drilled it into me decades ago…


On Feb 17, 2025, at 12:36?AM, Jon Rus via groups.io <byghtn5@...> wrote:




You could type your message into the windows notepad, or something similar, and copy + paste into the web pages......



On 2/17/2025 1:23 AM, Evan via groups.io wrote:
?
Hi Ron,
?
Yes I do that SOME of the time. The problem is I keep forgetting to make a copy. Other software, like text editors don't do that, so I only have to remember when using online stuff.?
?
Evan
Lathe: 1955 Boxford Model A with screw cutting gearbox, power feed with several accessories, hand tools and a pillar drill press.
Try my Free Online Gear train Software:
You enter a thread pitch or TPI and it shows you a range of gear trains and gearbox setting to use and even a scale drawing of the gear train.
It also includes calculations for taper turning by the tailstock offset method, and cutting speeds.
It includes the specifications for many thread types eg metric, UNC, BSW, and BA.
Displays drill sizes for tapping threads at any percent thread depth (with full explanations).
My YouTube Channel and Playlist about using an engineers lathe: ?
Project to build a Greek Hero steam engine and measure its power output:?



--?
Bruce Johnson

The less a man knows about how sausages and laws are made, the easier it is to steal his vote and give him botulism.


Re: Polygon Cutter

 

Hi Evan et al,
When you are writing or replying to a post via the Groups.io web interface, your message should be saved in the Drafts folder.? Unless you hit the Discard button.
You can have multiple drafts too, even on the same thread.? Draft will be saved for two weeks.??
?
I use this feature quite a bit.? e.g. Half finished reply, that I may get to later on.? Something I write but decide to think some more before hitting send.
I'm using it now <smile>.? Just realized I don't need to write a mini-manual.? Better service for me to search and provide a link to the manual.
?
Section: "7.7 Working with draft messages on the group’s website"
?
Regards,
Gary
?
?
On Sat, Feb 15, 2025 at 07:23 PM, Evan wrote:

I hate the fact that if I leave this post to find the link I want, I will loose the post I have already written. It has happened many times!


Re: Polygon Cutter

 

开云体育




You could type your message into the windows notepad, or something similar, and copy + paste into the web pages......



On 2/17/2025 1:23 AM, Evan via groups.io wrote:

?
Hi Ron,
?
Yes I do that SOME of the time. The problem is I keep forgetting to make a copy. Other software, like text editors don't do that, so I only have to remember when using online stuff.?
?
Evan
Lathe: 1955 Boxford Model A with screw cutting gearbox, power feed with several accessories, hand tools and a pillar drill press.
Try my Free Online Gear train Software:
You enter a thread pitch or TPI and it shows you a range of gear trains and gearbox setting to use and even a scale drawing of the gear train.
It also includes calculations for taper turning by the tailstock offset method, and cutting speeds.
It includes the specifications for many thread types eg metric, UNC, BSW, and BA.
Displays drill sizes for tapping threads at any percent thread depth (with full explanations).
My YouTube Channel and Playlist about using an engineers lathe: ?
Project to build a Greek Hero steam engine and measure its power output:?



Re: Polygon Cutter

 

?
Hi Ron,
?
Yes I do that SOME of the time. The problem is I keep forgetting to make a copy. Other software, like text editors don't do that, so I only have to remember when using online stuff.?
?
Evan
Lathe: 1955 Boxford Model A with screw cutting gearbox, power feed with several accessories, hand tools and a pillar drill press.
Try my Free Online Gear train Software:
You enter a thread pitch or TPI and it shows you a range of gear trains and gearbox setting to use and even a scale drawing of the gear train.
It also includes calculations for taper turning by the tailstock offset method, and cutting speeds.
It includes the specifications for many thread types eg metric, UNC, BSW, and BA.
Displays drill sizes for tapping threads at any percent thread depth (with full explanations).
My YouTube Channel and Playlist about using an engineers lathe: ?
Project to build a Greek Hero steam engine and measure its power output:?


Re: Ball bearing Cross slide and power look for IDEA'S

 

Thanks Bruce, that is what I thought. Now has anyone built a drive with steppers? I'd like to see how you set it up.


On Sun, Feb 16, 2025 at 12:11?PM Bruce J via <bruce.desertrat=gmail.com@groups.io> wrote:
No. That article was just about adding a power feed to the mini-mill. You need stepper motors or servo motors for CNC, because you need to maintain absolute known position.?
--?
Bruce Johnson

The less a man knows about how sausages and laws are made, the easier it is to steal his vote and give him botulism.

On Feb 15, 2025, at 6:46?PM, Ralph Hulslander via <rhulslander=gmail.com@groups.io> wrote:

That uses a direct drive dc motor, would that work for CNC??

On Sat, Feb 15, 2025 at 6:33?PM Bruce J via <bruce.desertrat=gmail.com@groups.io> wrote:
Duh…I was looking right at the article when I wrote that…smh.
--?
Bruce Johnson

The less a man knows about how sausages and laws are made, the easier it is to steal his vote and give him botulism.

On Feb 15, 2025, at 11:33?AM, WAM via <ajawam2=gmail.com@groups.io> wrote:

That's for a Mini Mill

On 2/14/2025 10:51 PM, Bruce J via wrote:
The Home Shop Machinist book “The Complete Mini Lathe Workshop “ has a bunch of stuff like that, although a power feed isn’t one of them He did have an article about making a power rfeed for ?mini-lathe recently in the magazine in the January/February 2024 issue. 6879 <>

On Feb 14, 2025, at 6:53 PM, davesmith1800 via <davesmith1=sbcglobal.net@groups.io> wrote:

My next project on my mini lathe is adding ball bearing ?on my cross slide and power feed.
?After that DC drive to carriage.
?Dose any have photos or drawings the post.
?Dave
?FYI
This group is for only MINI LATHES.
This just FYI ONLY on other
?This the group's wish to only be Mini Lathes and Improvements to Mini Lathe . The bottom has master rules of all
Almost all my threads I have respect there wishes since 2005.
?I am no longer responding to other Threads Not Mini Lathe. related.
?Here list of groups that maybe let off Topics. This just short list & groups I have been on in the past. I have this for over 5 years
?Happy posting
?/g/Mini-Lathes/messages </g/Mini-Lathes/messages>
?/g/Unimat </g/Unimat>
?/g/minilathe/messages </g/minilathe/messages>
?/g/atlas-craftsman/messages </g/atlas-craftsman/messages>
?/g/SouthBendLathe9/messages </g/SouthBendLathe9/messages>
?/g/DaltonLathes/messages </g/DaltonLathes/messages>
?/g/4x6bandsaw/messages </g/4x6bandsaw/messages>
? <>
? <>
???
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Re: Ball bearing Cross slide and power look for IDEA'S

 

开云体育

No. That article was just about adding a power feed to the mini-mill. You need stepper motors or servo motors for CNC, because you need to maintain absolute known position.?
--?
Bruce Johnson

The less a man knows about how sausages and laws are made, the easier it is to steal his vote and give him botulism.

On Feb 15, 2025, at 6:46?PM, Ralph Hulslander via groups.io <rhulslander@...> wrote:

That uses a direct drive dc motor, would that work for CNC??

On Sat, Feb 15, 2025 at 6:33?PM Bruce J via <bruce.desertrat=gmail.com@groups.io> wrote:
Duh…I was looking right at the article when I wrote that…smh.
--?
Bruce Johnson

The less a man knows about how sausages and laws are made, the easier it is to steal his vote and give him botulism.

On Feb 15, 2025, at 11:33?AM, WAM via <ajawam2=gmail.com@groups.io> wrote:

That's for a Mini Mill

On 2/14/2025 10:51 PM, Bruce J via wrote:
The Home Shop Machinist book “The Complete Mini Lathe Workshop “ has a bunch of stuff like that, although a power feed isn’t one of them He did have an article about making a power rfeed for ?mini-lathe recently in the magazine in the January/February 2024 issue. 6879 <>

On Feb 14, 2025, at 6:53 PM, davesmith1800 via <davesmith1=sbcglobal.net@groups.io> wrote:

My next project on my mini lathe is adding ball bearing ?on my cross slide and power feed.
?After that DC drive to carriage.
?Dose any have photos or drawings the post.
?Dave
?FYI
This group is for only MINI LATHES.
This just FYI ONLY on other
?This the group's wish to only be Mini Lathes and Improvements to Mini Lathe . The bottom has master rules of all
Almost all my threads I have respect there wishes since 2005.
?I am no longer responding to other Threads Not Mini Lathe. related.
?Here list of groups that maybe let off Topics. This just short list & groups I have been on in the past. I have this for over 5 years
?Happy posting
?/g/Mini-Lathes/messages </g/Mini-Lathes/messages>
?/g/Unimat </g/Unimat>
?/g/minilathe/messages </g/minilathe/messages>
?/g/atlas-craftsman/messages </g/atlas-craftsman/messages>
?/g/SouthBendLathe9/messages </g/SouthBendLathe9/messages>
?/g/DaltonLathes/messages </g/DaltonLathes/messages>
?/g/4x6bandsaw/messages </g/4x6bandsaw/messages>
? <>
? <>
???
Terms
Please ensure that your group adheres to our Terms of Service. We at Groups.io believe in freedom of expression, and it is our intention to respect different perspectives and enable them to co-exist seamlessly and effortlessly. We do not permit the following:
?Pornography, adult content or nudity.
Harassment of any kind.
Groups that share media or content whose distribution would be in violation of copyright law.
Groups dedicated to the promotion of extreme, hateful, or exclusionary ideas, including but not limited to, the alt-right.
Groups dedicated to the promotion of conspiracy theories, including, but not limited to: Gamergate, Pizzagate, and Qanon.
Groups dedicated to the promotion of anti-vaccination ideologies.
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If you are creating a group solely for testing the features of Groups.io, please ensure that the Directory Of Groups.io Groups option is set for Do not list group in directory and that the Visibility of Messages in Message Archive option is set for messages can be viewed by group members only. Failure to set these options will result in the group being deleted.
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Re: Polygon Cutter

 

Evan, just select the text you have already written and copy it to your clipboard. Then when you are done looking for whatever, just come back and paste what you had written. I do it all the time. Various ways with the mouse, fingers, or commands to select the text to copy.
Ron


Polygon Cutter

 

?
The title "Cutting with a rotating cutter" made me think you might be making a polygon cutter for making square, hexagonal, pentagonal shafts etc. You are half way there with gears on the end of the leadscrew! ?My online program RideTheGearTrain includes a simulation of the polygon cutter so that you can vary the number of cutters on the spinning cutter head, vary the gear ratio between leadscrew and spinning cutter, and vary radius to see what effect it has:
?
?
I also have ? about it, including links to other YouTube videos of actual devices.
?
In this link you may also find when you scroll down quite a bit, an indexing device bush fix that I made using a small circular saw blade and I can substitute a range of change gears. The clicker I made for this makes it quite positive and precise: A broken hacksaw blade lifts up on a tooth of the saw blade and clicks off the edge of the tooth. Turn the check back a bit and the saw blade registers nicely on the straight edge of the saw tooth. It is prevented from bending backwards by a metal support on the underside of the blade. the blade I am using has 24 teeth and it is precise enough for at least 24 divisions, 12, 8, 3, 2, 4 etc.
?
I hate the fact that if I leave this post to find the link I want, I will loose the post I have already written. It has happened many times!
?
Evan

Lathe: 1955 Boxford Model A with screw cutting gearbox, power feed with several accessories, hand tools and a pillar drill press.
Try my Free Online Gear train Software:
You enter a thread pitch or TPI and it shows you a range of gear trains and gearbox setting to use and even a scale drawing of the gear train.
It also includes calculations for taper turning by the tailstock offset method, and cutting speeds.
It includes the specifications for many thread types eg metric, UNC, BSW, and BA.
Displays drill sizes for tapping threads at any percent thread depth (with full explanations).
My YouTube Channel and Playlist about using an engineers lathe: ?
Project to build a Greek Hero steam engine and measure its power output:?


Re: Ball bearing Cross slide and power look for IDEA'S

 

That uses a direct drive dc motor, would that work for CNC??


On Sat, Feb 15, 2025 at 6:33?PM Bruce J via <bruce.desertrat=gmail.com@groups.io> wrote:
Duh…I was looking right at the article when I wrote that…smh.
--?
Bruce Johnson

The less a man knows about how sausages and laws are made, the easier it is to steal his vote and give him botulism.

On Feb 15, 2025, at 11:33?AM, WAM via <ajawam2=gmail.com@groups.io> wrote:

That's for a Mini Mill

On 2/14/2025 10:51 PM, Bruce J via wrote:
The Home Shop Machinist book “The Complete Mini Lathe Workshop “ has a bunch of stuff like that, although a power feed isn’t one of them He did have an article about making a power rfeed for ?mini-lathe recently in the magazine in the January/February 2024 issue. 6879 <>

On Feb 14, 2025, at 6:53 PM, davesmith1800 via <davesmith1=sbcglobal.net@groups.io> wrote:

My next project on my mini lathe is adding ball bearing ?on my cross slide and power feed.
?After that DC drive to carriage.
?Dose any have photos or drawings the post.
?Dave
?FYI
This group is for only MINI LATHES.
This just FYI ONLY on other
?This the group's wish to only be Mini Lathes and Improvements to Mini Lathe . The bottom has master rules of all
Almost all my threads I have respect there wishes since 2005.
?I am no longer responding to other Threads Not Mini Lathe. related.
?Here list of groups that maybe let off Topics. This just short list & groups I have been on in the past. I have this for over 5 years
?Happy posting
?/g/Mini-Lathes/messages </g/Mini-Lathes/messages>
?/g/Unimat </g/Unimat>
?/g/minilathe/messages </g/minilathe/messages>
?/g/atlas-craftsman/messages </g/atlas-craftsman/messages>
?/g/SouthBendLathe9/messages </g/SouthBendLathe9/messages>
?/g/DaltonLathes/messages </g/DaltonLathes/messages>
?/g/4x6bandsaw/messages </g/4x6bandsaw/messages>
? <>
? <>
???
Terms
Please ensure that your group adheres to our Terms of Service. We at Groups.io believe in freedom of expression, and it is our intention to respect different perspectives and enable them to co-exist seamlessly and effortlessly. We do not permit the following:
?Pornography, adult content or nudity.
Harassment of any kind.
Groups that share media or content whose distribution would be in violation of copyright law.
Groups dedicated to the promotion of extreme, hateful, or exclusionary ideas, including but not limited to, the alt-right.
Groups dedicated to the promotion of conspiracy theories, including, but not limited to: Gamergate, Pizzagate, and Qanon.
Groups dedicated to the promotion of anti-vaccination ideologies.
Groups that are designed strictly to use our directory as an advertisement for something other than the group itself.
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If you are creating a group solely for testing the features of Groups.io, please ensure that the Directory Of Groups.io Groups option is set for Do not list group in directory and that the Visibility of Messages in Message Archive option is set for messages can be viewed by group members only. Failure to set these options will result in the group being deleted.
???








Re: Ball bearing Cross slide and power look for IDEA'S

 

开云体育

Duh…I was looking right at the article when I wrote that…smh.
--?
Bruce Johnson

The less a man knows about how sausages and laws are made, the easier it is to steal his vote and give him botulism.

On Feb 15, 2025, at 11:33?AM, WAM via groups.io <ajawam2@...> wrote:

That's for a Mini Mill

On 2/14/2025 10:51 PM, Bruce J via groups.io wrote:
The Home Shop Machinist book “The Complete Mini Lathe Workshop “ has a bunch of stuff like that, although a power feed isn’t one of them He did have an article about making a power rfeed for ?mini-lathe recently in the magazine in the January/February 2024 issue. 6879 <https://secure.villagepress.com/store/items/detail/item/6879>

On Feb 14, 2025, at 6:53 PM, davesmith1800 via groups.io <davesmith1@...> wrote:

My next project on my mini lathe is adding ball bearing ?on my cross slide and power feed.
?After that DC drive to carriage.
?Dose any have photos or drawings the post.
?Dave
?FYI
This group is for only MINI LATHES.
This just FYI ONLY on other
?This the group's wish to only be Mini Lathes and Improvements to Mini Lathe . The bottom has master rules of all www.groups.io
Almost all my threads I have respect there wishes since 2005.
?I am no longer responding to other Threads Not Mini Lathe. related.
?Here list of groups that maybe let off Topics. This just short list & groups I have been on in the past. I have this for over 5 years
?Happy posting
?/g/Mini-Lathes/messages </g/Mini-Lathes/messages>
?/g/Unimat </g/Unimat>
?/g/minilathe/messages </g/minilathe/messages>
?/g/atlas-craftsman/messages </g/atlas-craftsman/messages>
?/g/SouthBendLathe9/messages </g/SouthBendLathe9/messages>
?/g/DaltonLathes/messages </g/DaltonLathes/messages>
?/g/4x6bandsaw/messages </g/4x6bandsaw/messages>
?https://www.homemodelenginemachinist.com/ <https://www.homemodelenginemachinist.com/>
?https://weldingweb.com/vbb/forum.php <https://weldingweb.com/vbb/forum.php>
???GROUS.IO
Terms
Please ensure that your group adheres to our Terms of Service. We at Groups.io believe in freedom of expression, and it is our intention to respect different perspectives and enable them to co-exist seamlessly and effortlessly. We do not permit the following:
?Pornography, adult content or nudity.
Harassment of any kind.
Groups that share media or content whose distribution would be in violation of copyright law.
Groups dedicated to the promotion of extreme, hateful, or exclusionary ideas, including but not limited to, the alt-right.
Groups dedicated to the promotion of conspiracy theories, including, but not limited to: Gamergate, Pizzagate, and Qanon.
Groups dedicated to the promotion of anti-vaccination ideologies.
Groups that are designed strictly to use our directory as an advertisement for something other than the group itself.
Groups dedicated to sharing tags, tubes, PaintShopPro files, GIFs, Incredimail or other stationery or graphics.
If you are creating a group solely for testing the features of Groups.io, please ensure that the Directory Of Groups.io Groups option is set for Do not list group in directory and that the Visibility of Messages in Message Archive option is set for messages can be viewed by group members only. Failure to set these options will result in the group being deleted.
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